Re: Delay displaying text in a clist

["Thomas Keaney" <se40319 cs may ie>]

Thanks for the code, but I am having a probelm with it at the moment.
Instead of displaying the message once after a three seconds it keeps
displaying it continuosly every three seconds. How would I overcome this?

Regards,
Thomas Keaney
4 CSSE

----- Original Message ----- 
From: "Markus Lausser" <sgop users sourceforge net>
To: "Thomas Keaney" <se40319 cs may ie>
Cc: "gtk mailing list" <gtk-app-devel-list gnome org>
Sent: Monday, February 02, 2004 9:56 PM
Subject: Re: Delay displaying text in a clist


> On Mon, 2004-02-02 at 21:07, Thomas Keaney wrote:
> > Hi,
> >
> > Im using the clist and I want to delay displaying the text for a
> > moment. That is when I click on a button I want a message to be
> > displayed. I want this message to be displayed for a few seconds
> > before another message will be displayed without clicking on the
> > button. (Click Button ->Message1 with delay -> Message2 ) Thanks in
> > advance.
>
> In gtk+-2.x:
> --------------------------------
>
> static int Timer = 0;
> static void on_button_clicked(GtkButton* button, GtkCList* clist);
> static void display_text(GtkCList* clist, const char* text);
> static gboolean timer_func(GtkCList* clist);
>
> int main (void) {
>   ...
>   g_signal_connect(G_OBJECT(button), "clicked",
>                    G_CALLBACK(on_button_clicked), clist);
>   ...
>   return 0;
> }
>
> static void on_button_clicked(GtkButton* button, GtkCList* clist) {
>   const char* text;
>
>   text = get_text_to_display_somehow();
>   display_text(clist, text);
> }
>
> static void display_text(GtkCList* clist, const char* text) {
>
>   // maybe the next line doesnt work because of text being const.
>   gtk_clist_append(clist, &text);
>
>   if (Timer) g_source_remove(Timer);
>   Timer =
>     g_timeout_add(1000*some_seconds, (GSourceFunc)timer_func, clist);
> }
>
> static gboolean timer_func(GtkCList* clist) {
>   display_text(clist, "some other text");
>   Timer = 0;
>   return FALSE;
> }
>
> --------------------------------
>
> Same in gtk+-1.2, with slightly modified function names
> (gtk_signal_connect, etc.).
>
> Markus.